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一、概况我厂热镀锌钢管年产量一般在五千吨与九千吨之间。热镀锌的工艺流程是首先把焊接管经硫酸溶液酸洗,除去表面层氧化铁皮,然后水洗蘸氯化锌溶剂烘干、再进行热镀锌。过去钢管酸洗常采用海鸥牌工业洗涤剂或十二烷基磺酸钠作缓蚀剂,对铁缓蚀效果甚差,环境污染严重,酸洗每吨焊接管需耗硫酸大致在28～50kg 之间,车间烟气腾腾,实在难以作业。
First, the general situation I plant the annual output of hot-dip galvanized steel generally between 5,000 tons and 9,000 tons. Hot galvanized process is the first pipe welded by sulfuric acid solution to remove the surface of the oxide scale, and then washed with zinc chloride solvent dipped in water, and then hot dip galvanized. Steel pipe pickling often used in the past seagull industrial detergent or sodium dodecyl sulfate as a corrosion inhibitor, the corrosion effect of iron is very poor, serious environmental pollution, pickling sulfuric acid per ton of welded pipe consumption of roughly 28 ~ 50kg Between the workshop flue gas, it is difficult to operate.